Subtonic STORM and PMG Audio Apx SE use 5BA+2EST+2SLAM and 1DD+8BA+1Rectangular Planar+1Round Planar driver setups respectively. Subtonic STORM costs $5,200 while PMG Audio Apx SE costs $6,000. PMG Audio Apx SE is $800 more expensive. Subtonic STORM holds a slight 0.2-point edge in reviewer scores (9.2 vs 8.9). Subtonic STORM has better mids with a 0.7-point edge, Subtonic STORM has better treble with a 0.7-point edge, Subtonic STORM has significantly better dynamics with a 1-point edge, Subtonic STORM has better details with a 0.7-point edge and Subtonic STORM has better imaging with a 0.5-point edge.
Insights
| Metric | Subtonic STORM | PMG Audio Apx SE |
|---|---|---|
| Bass | 8.7 | 8.5 |
| Mids | 8.4 | 7.8 |
| Treble | 8.7 | 8 |
| Details | 9.7 | 9 |
| Soundstage | 9.5 | 8.9 |
| Imaging | 9 | 8.5 |
| Dynamics | 9.5 | 8.5 |
| Tonality | 9.1 | 8.4 |
| Technicalities | 9.3 | 9.2 |
Subtonic STORM Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
9.2Outstanding
PMG Audio Apx SE Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.9Outstanding
Reviews Comparison
Subtonic STORM reviewed by Yifang
Youtube Video Summary
Subtonic STORM arrives as a spectacle: a limited run of 50 units presented in a hefty suitcase-style box that feels close to 2 kg. The unboxing greets with a personalized card and serialized plate—in this case marked “STORM 019.” Accessories are equally premium: a neatly organized tip case and a Singaporean handmade leather pouch crafted from aged Italian leather, signaling boutique attention to detail before the earphones even leave the case.
The earpieces show off a golden “stormy” faceplate evoking mythic cloud imagery, backed by hand-enameled black paint so meticulous that one in three plates is discarded to meet quality standards. Even the stock cable is positioned as ultra-high end, quoted at around $2,500 with an intricate crystal-lattice design. Price is acknowledged as “way too much money”, yet the presentation unabashedly stakes a claim as the world’s best IEM. This video stays focused on the unboxing and build; a full listening review is teased for a later date.
Yifang Youtube Channel
PMG Audio Apx SE reviewed by Yifang
Yifang Youtube Channel
Subtonic STORM reviewed by Smirk Audio
PMG Audio Apx SE reviewed by Smirk Audio
Subtonic STORM reviewed by Bad Guy Good Audio
Youtube Video Summary
Subtonic STORM lands as a $5,200 flagship built around novel SLAM balanced-armature tech: the dual BA “subwoofer” and “woofer” are separated and crossed over independently, joined by a regular BA mid-woofer, additional BA mids, BA mid-tweeter and tweeter, plus two EST—nine drivers total with a seven-point crossover. The result isn’t just another spec sheet; it’s a system that behaves like a rethought low-end engine that sets up everything above it.
On music, the bass ranks an honest 8/10 because it doesn’t sound like typical BA bass—there’s real weight without mid bleed, so male/female vocals, strings, and guitars stay pristine. Complex tracks reveal studio fingerprints: the 38 Hz triple drop on Big Boi’s “Kill Jill” slams; the glockenspiel in Springsteen’s “Born to Run” is crystal; Pink Floyd’s “On the Run” left-right sweeps and the early gate announcement snap into focus; Hendrix’s uneven production becomes obvious; and the Led Zeppelin IV kick-drum intro hits with the produced, swirling authority it should. From Vivaldi to hip-hop, it just handles the library.
Stage is spacious and speaker-like off good sources, with positional cues that outclass sets like Elysian Annihilator and even edge the Fatfreq Grand Maestro for resolution, stage, and tonality—though Grand Maestro’s multi-tuning keeps it competitive. Ignore treble “hacksaw” graph takes and target-chasing; the performance argues against strict adherence to Harman-style curves. Diminishing returns are real, but for those chasing something genuinely different, the STORM’s reworked BA low end and refined EST top end deliver a uniquely authoritative, all-genre presentation that’s hard to unhear.
Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube ChannelPMG Audio Apx SE reviewed by Bad Guy Good Audio
Youtube Video Summary
The PMG Audio Apx SE comes out swinging with a $6,000 price tag and a $1,600 cable that looks the part but fights the ear with stiffness and springy memory. The shells flaunt real lapis lazuli and an over-the-top suitcase-and-pillow presentation, complete with certificates and multiple cases—great for show, awkward for daily carry. Ergonomically, the cable’s tension and odd flush/penetrating plug mismatch feel fussy, making this an at-home listening trophy rather than a commuter’s companion.
Under the bling sits a small army: 11 drivers per side (10 mm DD, two planars—one rectangular, one round—and eight BAs) with a seven-way passive crossover, somehow delivering startling cohesion at just 5 Ω. The sound is hyper-resolving and fault-finding; imaging and spatial precision rank among the best heard, revealing hums, edits, and room cues that lesser sets gloss over. Stock silicones lean monitor-flat, but swapping to grippier tips (e.g., “Render” style) adds weight and a touch of warmth, nudging the tuning from sterile to satisfying.
Versus other favorites—Softears Twilight for natural timbre and Dunu Glacier for bass slam—the Apx SE feels like the “full package” of microdetail, stage mapping, and technical swagger, but only by a diminishing-returns margin. It’s arguably the most technically impressive IEM on the desk, yet not the most lovable; the wallet pain and fussy cable sap the joy. Verdict: hear it if you can and crave top-end microdetail, but recommending a used-car-priced IEM to normal humans? That’s a hard no.
Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube ChannelSubtonic STORM reviewed by Head-Fi.org
PMG Audio Apx SE reviewed by Head-Fi.org
Subtonic STORM (more reviews)
Subtonic STORM reviewed by Jays Audio
Youtube Video Summary
Most IEMs inevitably introduce flaws that shatter musical immersion—be it harsh treble, shouty vocals, or unbalanced bass. These imperfections act as chains, binding the listener and preventing that elusive state of pure, uninterrupted freedom within the music. While the OG EJ07 came close, even it faltered on certain tracks, its forward vocals becoming a jarring distraction when pushed hard. The Subtonic Storm, however, shatters this pattern entirely.
Contrary to its name, the Storm represents the eye of the hurricane—a sanctuary of pure, effortless sound. It liberates the music from tuning flaws, presenting it naturally and tranquilly. There are zero distractions or attachments holding the listener back, enabling deep introspection and complete immersion, as if conversing directly with the singer or instrument. This profound, intangible quality—achieving that free state—is why it's considered the best IEM, offering unmatched resolution, separation, and imaging, albeit at an astronomical $5,000 price point.
Value-wise, the Storm is undeniably terrible; the KZ ASF ($250) gets you 80% there, and the Monarch MKII ($1,000) delivers 95%. It's a luxury item, justified only by its unique, unmeasurable ability to dissolve worldly distractions and forge total oneness with the music. Crucially, it's not for everyone: Bass heads, background listeners, or those enjoying J-pop/K-pop/EDM will find far better value elsewhere under $300. Only those deeply seeking musical transcendence, with ample disposable income, should even consider it. For everyone else, stay away—you simply don’t need it.
Jays Audio Youtube Channel
Subtonic STORM reviewed by Shuwa-T
Subtonic STORM reviewed by Precogvision
Precogvision Youtube Channel
Subtonic STORM reviewed by Tim Tuned
Youtube Video Summary
Subtonic STORM closes the list as the ultra-high-end, “one-and-done” pick—the kind of most expensive flagship that needs no hype because the name says it all. Chosen for a “versatile” roundup, it’s framed as the endgame option for those who want a single IEM to cover everything and have the budget to match—cue the playful “rich boys” jab.
The verdict is equal parts praise and pragmatism: demo first. STORM isn’t a blind-buy, and the price is so stratospheric it gets the tongue-in-cheek advice to sell a car, a house, or a kidney. In short, a summit-fi statement piece with serious one-set potential—but only after making sure the tuning truly clicks.
Tim Tuned Youtube Channel
Subtonic STORM reviewed by Gizaudio Axel
Gizaudio Axel original ranking
Gizaudio Axel Youtube ChannelSubtonic STORM reviewed by Web Search
The Subtonic Storm delivers a balanced sound signature characterized by a generous sub-bass boost, neutral midrange, and an elevated, articulate treble response. Its standout feature is the implementation of proprietary SLAM drivers—custom balanced armatures handling separate sub-bass and mid-bass frequencies—which produce exceptional slam and texture rivaling dynamic drivers. The treble exhibits deliberate, controlled peaks between 5-15kHz, contributing to vividness without harshness, though some listeners may note a slight roll-off past 16kHz.
Technically, the Storm sets a high bar with class-leading dynamics, micro-detail resolution, and driver coherence across its hybrid array. Staging offers strong width and depth but lacks a cohesive center image. Ergonomically, the titanium shells are bulky and heavy, causing fatigue during extended use, and the stock cable is often criticized for stiffness. Additionally, its low sensitivity demands powerful amplification, limiting portability.
PMG Audio Apx SE (more reviews)
PMG Audio Apx SE reviewed by Z-Reviews
Youtube Video Summary
The PMG Audio Apx SE comes out swinging with a $6,000 price tag and a $1,600 cable that looks the part but fights the ear with stiffness and springy memory. The shells flaunt real lapis lazuli and an over-the-top suitcase-and-pillow presentation, complete with certificates and multiple cases—great for show, awkward for daily carry. Ergonomically, the cable’s tension and odd flush/penetrating plug mismatch feel fussy, making this an at-home listening trophy rather than a commuter’s companion.
Under the bling sits a small army: 11 drivers per side (10 mm DD, two planars—one rectangular, one round—and eight BAs) with a seven-way passive crossover, somehow delivering startling cohesion at just 5 Ω. The sound is hyper-resolving and fault-finding; imaging and spatial precision rank among the best heard, revealing hums, edits, and room cues that lesser sets gloss over. Stock silicones lean monitor-flat, but swapping to grippier tips (e.g., “Render” style) adds weight and a touch of warmth, nudging the tuning from sterile to satisfying.
Versus other favorites—Softears Twilight for natural timbre and Dunu Glacier for bass slam—the Apx SE feels like the “full package” of microdetail, stage mapping, and technical swagger, but only by a diminishing-returns margin. It’s arguably the most technically impressive IEM on the desk, yet not the most lovable; the wallet pain and fussy cable sap the joy. Verdict: hear it if you can and crave top-end microdetail, but recommending a used-car-priced IEM to normal humans? That’s a hard no.
Z-Reviews Youtube Channel
Subtonic STORM Details
Driver Configuration: 5BA+2EST+2SLAM
Tuning Type: Neutral with Bass Boost
Brand: Subtonic Top Subtonic IEMs
Price (Msrp): $5,200
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PMG Audio Apx SE Details
Driver Configuration: 1DD+8BA+1Rectangular Planar+1Round Planar
Tuning Type: Warm, U-Shaped
Price (Msrp): $6,000
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Subtonic STORM User Review Score
Average User Scores
Average User Score: n/a
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PMG Audio Apx SE User Review Score
Average User Scores
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Based on 0 user reviews
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Subtonic STORM Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.7Gaming Grade
APMG Audio Apx SE Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.4Gaming Grade
A-Subtonic STORM Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S- Expect a breathtakingly coherent response that elevates musicality and precision in equal measure. It highlights musical intent with uncanny clarity.
Average Technical Grade
S- Expect an effortlessly clean presentation that keeps complex mixes perfectly organized. There is zero sense of congestion even at high volume.
PMG Audio Apx SE Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Tuning feels refined, blending frequencies with convincing realism and engagement. Transitions between registers feel effortless.
Average Technical Grade
S- Expect an effortlessly clean presentation that keeps complex mixes perfectly organized. There is zero sense of congestion even at high volume.
Subtonic STORM User Reviews
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